Precision bearings are one of the important parts in the operation of machine tool equipment. In the cnc machine tool industry, precision bearings have always played an important role in normal operation and production efficiency. So, what are the characteristics of precision bearings in CNC machine tools?
1. Highly flexible
To ensure the surface accuracy of the workpiece, it mainly depends on the processing procedure. It is different from the ordinary machine tool. There is no need to manufacture and replace many tools and fixtures, and there is no need to frequently adjust the machine tool. Therefore, CNC machine tools are suitable for occasions where parts are frequently replaced. That is, it is suitable for single piece, small batch production and the development of new products, shortens the production preparation cycle, and saves a lot of process equipment costs.
2. High processing accuracy
The machining accuracy of CNC machine tools can generally reach 0.005～0.1mm. CNC machine tools are controlled in the form of digital signals. Each time the CNC device outputs a pulse signal, the moving parts of the machine tool move by one pulse equivalent (usually 0.001mm), and the machine tool advances The average error of the backlash of the transmission chain and the lead screw pitch can be compensated by the numerical control device. Therefore, the positioning accuracy of the numerical control machine tool is relatively high.
3. Stable and reliable processing quality
To process the same batch of parts, on the same machine tool, under the same processing conditions, using the same tool and processing procedure, the cutting path of the tool is exactly the same, the parts have good consistency, and the quality is stable.
4. High productivity
CNC machine tools can effectively reduce the processing time and auxiliary time of the parts. The spindle speed and feed range of the CNC machine tools are large, allowing the machine tools to carry out powerful cutting with large amounts of cutting, the rapid movement and positioning of the moving parts of the CNC machine tools and high-speed cutting processing. , It reduces the turnaround time between processes of semi-finished products and improves production efficiency.
5. Improve working conditions
After the CNC machine tool is adjusted before processing, enter the program and start it, and the machine tool can automatically and continuously perform processing until the end of the processing. Operators are mainly engaged in program input, editing, loading and unloading of parts, tool preparation, observation of machining status, and parts inspection. The labor intensity is greatly reduced, and the labor of machine tool operators tends to be intellectual work. In addition, the machine tool is generally closed processing, which is clean and safe.
6. Conducive to modernization of production management
The processing of CNC machine tools can accurately estimate the processing time in advance, and the tools and fixtures used can be standardized and modernized. Numerical control machine tools use digital signals and standard codes as control information, which is easy to realize the standardization of processing information. At present, it has been organically combined with computer-aided design and manufacturing (CAD/CAM), which is the basis of modern integrated manufacturing technology.
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